BR0202246A - Authentication using a digital watermark - Google Patents

Authentication using a digital watermark

Info

Publication number
BR0202246A
BR0202246A BR0202246-0A BR0202246A BR0202246A BR 0202246 A BR0202246 A BR 0202246A BR 0202246 A BR0202246 A BR 0202246A BR 0202246 A BR0202246 A BR 0202246A
Authority
BR
Brazil
Prior art keywords
digital watermark
authentication
barcode
information
key
Prior art date
Application number
BR0202246-0A
Other languages
Portuguese (pt)
Inventor
Nabil M Lawandy
Scott A Tillotson
Original Assignee
Spectra Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spectra Systems Corp filed Critical Spectra Systems Corp
Publication of BR0202246A publication Critical patent/BR0202246A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/12—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/14—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Credit Cards Or The Like (AREA)
  • Cleaning In Electrography (AREA)

Abstract

"AUTENTICAçãO USANDO UMA MARCA D'áGUA DIGITAL". Um processo e um aparelho para a identificação de um objeto incluem a codificação de atributos físicos de um objeto, onde a informação codificada é utilizada como pelo menos um elemento para a composição de uma marca d'água digital para o objeto. Em uma outra modalidade, os atributos físicos de um objeto são utilizados como uma chave para acesso à informação incluída em uma marca d'água digital para o objeto. Em uma outra modalidade, uma marca d'água digital é incorporada em um código de barras. Como um outro aspecto desta modalidade, a informação pode ser codificada na marca d'água digital do código de barras, e pode ser decodificada ou recuperada, de outra forma, pelo uso de uma chave. O código de barras com marca d'água digital pode funcionar de uma maneira convencional ou, também, pode incluir uma "chave de passagem", para permitir a leitura do código de barras em si."AUTHENTICATION USING A DIGITAL WATERPROOF". A process and apparatus for identifying an object include the encoding of an object's physical attributes, where the encoded information is used as at least one element for the composition of a digital watermark for the object. In another mode, an object's physical attributes are used as a key to access the information included in a digital watermark for the object. In another mode, a digital watermark is incorporated into a bar code. As another aspect of this modality, the information can be encoded in the digital watermark of the barcode, and can be decoded or retrieved, in another way, by using a key. The barcode with digital watermark can work in a conventional way, or it can also include a "passkey", to allow reading the barcode itself.

BR0202246-0A 2001-03-08 2002-03-08 Authentication using a digital watermark BR0202246A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/801,445 US20010037455A1 (en) 2000-03-09 2001-03-08 Authentication using a digital watermark

Publications (1)

Publication Number Publication Date
BR0202246A true BR0202246A (en) 2002-12-10

Family

ID=25181113

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0202246-0A BR0202246A (en) 2001-03-08 2002-03-08 Authentication using a digital watermark

Country Status (8)

Country Link
US (1) US20010037455A1 (en)
EP (1) EP1239413A3 (en)
JP (1) JP2003037730A (en)
KR (1) KR20020072233A (en)
AU (1) AU2321202A (en)
BR (1) BR0202246A (en)
CA (1) CA2374772A1 (en)
MX (1) MXPA02002557A (en)

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Also Published As

Publication number Publication date
MXPA02002557A (en) 2004-11-12
EP1239413A3 (en) 2004-04-07
JP2003037730A (en) 2003-02-07
EP1239413A2 (en) 2002-09-11
US20010037455A1 (en) 2001-11-01
AU2321202A (en) 2002-09-12
KR20020072233A (en) 2002-09-14
CA2374772A1 (en) 2002-09-08

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]